Power press



1,632,462 June 14, 1927- z, P. cANDEE POWER PRESS,

Filed May 1. 2925 4 Shoota-Shoet;

INVENTOR Zenas I? (cm 0'66 June 14, 1927,

Z. P. CANDEE POWER PRES 5 Filed May 1. 1925 4 Shoots-Sheet 3 INVENTORZenas 1. Candee BY-&

A RNEY v June 14, 1927.

z. P. CANDEE POWER PRESS F1194 May 1. 1925 4 Shoots-Sheet 4 INVENTOR IPatented June 14, 1927.

UNITED STATES PATENT OFFICE.

ZENAS 1?. CANDEE, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATERBURYFARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

POWER PRESS.

Application filed May 1, 1925. Serial No. 27,214.

This invention relates to a new and improved power press and itsstructure and operation is especially adapted, although not limitedthereto, for that type of press wherein two dies are brought togetherunder great pressure and the alignment of the dies should be exact.

It is the object of this invention, among other things, to produce apress wherein the 1G gate is connected with members whlch have a bearingin a solid frame both above and belowthat portion of the gate wlth wh chthe tools are connected and in the attainment of these objects, as wellas others, to provide a mechanism that will be composed bf a limitednumber of parts so arranged as to be readily accessible for adjustment,etc., and will have great rigidity when assembled.

The improvements in the details and arrangement of parts will beapparent from an inspection of the accompanying drawings in connectionwith the description hereinafter contained. I U

Referring to the drawings, 1n wh1ch l1l e numerals of referencedesignate like parts In the several figures:

Figure 1 is a front elevation of my 1mproved power press, with some ofthe parts thereof shown 1n section;

Figure 2 is a side elevatlon thereof;

Figure 3 is a sectional elevat1on thereof taken. generally upon line 33of F1gure 1;

Figure 4 is a transverse sectional plan View thereof, the parts insection being taken generally upon-line 4-4 of F1gure 1;

Figure 5 is an enlarged deta1l sect1onal plan view of-one of the rodbearlngs;

Figure 6 is a front elevation of another form of my improved die presshaving two rods instead of four, as shown in thety'pe of pressillustrated in the preceding views;

Figure 7 is a sectional elevat on thereof, taken generally upon line 7-7of F1gure 6; and

Figure 8 is a transverse sectionalview, taken generally upon line 8-8 ofF1gure 6.

In the drawings, 10 designates the frame of the press that is shown assupported upon the legs 11, as is usual.

This frame is preferably constructed with two uprights 12, which extendbetween the bed 23 and the head portions 13, wlnch are joined at theirupper ends by the cap 14, securedthereto by bolts 15.

J ournaled within the split bearings 16, in the frame, is a crank shaft17,upon the crank 18 of which is thesplit sleeve 19, to which areclamped the companion connec tions 20, that are secured at their lowerends to the gate block 21 by means of the tapered pins 22.

lVithin the bed 23 and the head portion 13, are a plurality of split rodbearings 24 which are arranged in pairs with the axes of the bearings inthe bed coincident with those of the bearings in the head. These rodbearings as shown are conical in form and preferably provided with slots25 in their outside wall which do not extend to the bore of the bearingand a slot 26 which extends entirely through one wall of the hearingfrom the exterior to the bore thereof. These rod bearings are adjustablysecured by the nuts 27 threaded upon opposite ends thereof and wherebytheir relative axial position may be varied and the diameter of the borevaried to a limited degree so as to insure an exact bearing surface 'forthe guides 28, which may be rods, as shown, or other shapes and forms,as may seem desirable, movable therein and to take up any lost motionthat may develop and disarrange the exact alignment of the operatingtools. The upper end of each of these bearings is covered by a cap 29,within which is the packing 30.

A plate 31 of fiber or similar material placed within each of the slots26, not only prevents the closing of the bearings too tightly on therod, but oil from the bearings from running down the outside of the rods28.

The gate 32 is provided attach corner with the cylindrical portions 33through which project the rods 28, that are secured therein by the bolts34, which-pass, through the integral lugs 35, between which is thefilling plate 37 of fiber or similar material within the slot 36.

Upon the bed 23 is a die block 38 having tools 39 of any desired form orstructure therein, and secured to the gate opposite the die block is aholder 40 or the like, having a punch 41 fixed therein.

The tools as shown herein are merely for the purpose of illustratmg theposition thereof, as the function, shape and form thereof are immaterialso far as this invention is concerned. The tools may be for embossing,piercing, drawing, or for any other desired purpose.

A vertical reciprocatory movement is given the gate from the crank shaft17 in the usual manner, during which time the rods 28 move through andare supported by the bearings 24.

By this construction the gate is guided by the rods, the bearings ofwhich are in a solid frame, both above and below the operating faces ofthe tools, thus providing a very rigid structure especially desirablewith a combination of blanking and embossing or stamping tools, and atthe same time are accessible both for installation, operation andremoval.

In some cases it is desirable that the weight of the gate, rods andparts connected therewith, should be taken off the crank shaft, whichresults in a smoother running machine. The mechanism for accom plishingthis purpose, as herein shown, comprises the rod 42 that is fixed in theupper end of each of the rods 28 and having-a collar -13 thereon,between which and the cap 29 is a coil spring 44, the tension of whichmay be varied through the nuts 45.

. Each of these springs is enclosed within a tube 46.

In Figures 1 to 4, inclusive, the structure shown is designed for apower press having four rods 28. A two rod machine or other multiple ofrods may be used with equal advantage. In Figures 6, 7, and 8 isillustrated a type of press wherein there are only two such rods, butthe parts adjacent to the rods are the same in both cases.

In this latter form, the head portion 49 projects forward from theuprights 50 and is connected with the bed 23 by'the rods 51. The gate 47in this type of press is slightly modified to provide for the two-rodtype, the cylindrical portions t8 thereof being in rear of the tools andextending above and below the corners thereof as in the other type. Thisgate is actuated from the crank shaft 52. through the connection 53.Otherwise the construction and opleration of the mechanism issubstantially t e same.

There are minor changes and alterations that may be made within myinvention, aside from those suggested, and I would therefore have itunderstood that I do not limit myself to the exact construction hereinshown and described, but claim all that falls fairly within the spiritand scope of the appended claims.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In a power press, a frame having a bed and a head located above thebed in spaced relation thereto, bearings carried by the head, bearingscarried by the bed and alined with the respective bearings of the head,a gate between the bed and head, a plurality of guide rods, means tofixedly'secure the guide rods to the gate intermediate the ends of therods,'the rods having their ends projecting above and below the gate andbeing movable in the respective bearings, and means to effect adjustmentof each of the bearings so as to accurately aline same with respect totheguide rods.

3. In a power press, a frame having a bed and a head located above thebed in spaced relation thereto, bearings carried by the head, bearingscarried by the bed and alined with the respective bearingsof the head, agate between the bed and head, a plurality of gulde rods, means tofixedly secure the guide rods to the gate intermediatethe ends of therods, the rods having their ends proectmg above and below thegate andbeing movable in the respective bearings, and means to enable adjustmentof the diameters of the bores of the bearings.

4. In a power press, a. frame having a bed and a head located above thebed in spaced relation thereto, bearings carried by the head, bearingscarried by the bed and alined 5. In a power press, a. frame having a bedI and a head located above the bed in spaced relation thereto, bearingscarried byttthe head, bearings carried by the bed and alined with. therespective bearings of the head, a. gate between the bed and head, aplurality of guide rods, split portions carried by the gate and formedto receive intermediate por tions of the guide rods, and means to securethe split portions to the rods so as to fixedly secure the latter to thegate, said rods having their ends extending above and below the gate andbeing received in the respective bearings.

. 6. In a power press, a, frame having. a bed and a head located abovethe bed in spaced relation thereto, bearings carried by the head,bearings carried by the bed and alined with the respective bearings ofthe head, a plurality of guide rods, cylindrical members on the gateformed to receive intermediate parts v ings carried of the rods andprojecting downwardly from the ate and toward the bed, and means tofixefly secure the rods in the members, the rods having their endsextending above and below the gate and being received in the respectivebearings.

7 In a power press, a frame having a bed and a head spaced above thebed, alined bearthe bed and by the head, a gate between t e bed andhead, downwardly extending split members carried by the gate, guide rodshaving intermediate portions thereof received in the members, and meansto clamp the split members to the rods so as to fixedly secure thelatter to the gate, the

' rods having their ends projecting above and below the gate and movablyreceived in the bearings.

8. In a power press, a frame having a bed and a head located above thebed in spaced relation thereto, bearings carried by the I head, bearingscarried by the bed and alined with, the respective bearings of the head,a gate between the bed and head, and a plurality of guides fixedlysecured to the gate having parts projecting above and below the gate andbeing movable in the respective f bearings.

9. In a power press, a frame having a bed and a head located above thebed in spaced relation thereto, bearings carried by the head, bearingscarried by the bed and alined with the respective bearings of the head,a gate between the bed and head, a plurality of guides fixedly securedto the gate having parts projecting above and below the gate and beingmovable in the respective bearings, and means to efl'ect adjustment ofeach of the bearings so as to accurately aline same with respect to theguide rods.

10. A power press having a frame with a bed and a head portion oppositeto each other and anopen space therebetween, a gate movably mountedbetween the head and the bed; a plurality of guides fixed to the gateand projecting above and below the same and through the said bed andhead portions; an extension rod connected wit-h each of'said guides; acollar thereon; anda spring be tween the guide and collar.

11 In combination with-the frame of a press, guides, a gate associatedwith the guides, and a bearing for each of the guides, having a conicalexterior, a slot extendin through the wall thereof into the bore of thebearings, and means for moving the endwise position of the bearingswhereby the diameter of said bore may be varied to a limited degree.

In testimony whereof, I have hereunto af-

